media: staging: cxd2099: Removed printing in write_block

There were remaining debug prints which haven't been found earlier
due to the disabled buffer mode. See commit 5abe108bdb67
("media: staging: cxd2099: Removed useless printing in cxd2099 driver")
for the already removed printings.

Signed-off-by: Jasmin Jessich <jasmin@anw.at>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>